Home / 8,680.40-13,019.28-2,837

Finding the Fourth Proportional to 8,680.40, 13,019.28 and 2,837

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Solution

The fourth proportional to 8,680.40, 13,019.28 and 2,837 is: 4,255.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.40 : 13,019.28 = 2,837 : x
  2. Step 2: Convert to fraction form
    8,680.40/13,019.28 = 2,837/x
  3. Step 3: Cross multiply
    8,680.40x = 13,019.28 × 2,837
  4. Step 4: Simplify right side
    8,680.40x = 36,935,697.36
  5. Step 5: Solve for x
    x = 36,935,697.36/8,680.40
  6. Step 6: Final answer
    x = 4,255.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.